<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title> start jQuery </title>

<style>
  div{width:100px; height:100px; background-color:#0FF;}
</style>

<!-- jQuery library -->
<script src="jquery-1.7.2.min.js"></script>

<script>
$(function() {
	  $("div").click(function(e) {
          $(this).text("Hello World");
    }); 
})
</script>
</head>

<body>

  <div></div>
  
</body>

</html>



